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http://bugs.kde.org/show_bug.cgi?id=131197         
           Summary: KDM starts with two screens, logging in disables one
                    screen and loses window settings
           Product: kwin
           Version: 3.0
          Platform: Ubuntu Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
        AssignedTo: kwin kde org
        ReportedBy: omega blackcatgames com


Version:           3.0 (using KDE KDE 3.5.3)
Installed from:    Ubuntu Packages

When I start KDM, both screens are enabled. When I proceed to log in, the right screen is disabled and my resolution is scaled down to 800x600.

If I then enable both screens by using the command "xrandr -s 0" and I try to maximize a window, it isn't confined to just one screen, but spans both. In order to fix it, I have to disable the option "Allow moving and resizing of maximized windows" and then enable it again. (hitting apply both times). Both my taskbars show exactly the same applications, eventhough the option for it ("Show windows from all screens") is disabled. In order to fix that, I have to enable the option, click apply, disable the option and click apply.

I created a new user to see if the same problem would occur, and it didn't. There it worked fine.
It must be a file that got corrupted, except I have no idea which one. This whole problem started happening after I updated kdelibs (and possibly kwin, but I think that's part of kdelibs?) from the kubuntu edgy repositories (which will be patched with Seli's Xinerama improvements. http://ktown.kde.org/~seli/xinerama/)

Here are the relevant sections of my xorg.conf file:
Section "Device"
        Identifier      "6600GT"
        BoardName       "GeForce 6600GT"
        Driver          "nvidia"
        BusID           "PCI:1:0:0"
        Option          "NvAGP"                         "2"
        Option          "TwinView"                      "on"
        Option          "Metamodes"     "1280x1024,1280x1024; 1024x768,1024x768; 800x600,800x600; 1280x1024,NULL; 1024x768,NULL; 800x600,NULL"
        Option          "TwinViewOrientation"           "RightOf"
        Option          "SecondMonitorHorizSync"        "UseEdidFreqs"
        Option          "SecondMonitorVertRefresh"      "UseEdidFreqs"
        Option          "ConnectedMonitor"              "crt, crt"
        Option          "NoLogo"                        "True"
        Option          "NoPowerConnectorCheck"         "True"
EndSection

Section "Monitor"
        Identifier      "930BF"
        VendorName      "SamSung"
        ModelName       "930BF"
        Option          "DPMS"
        Option          "UseEdidFreqs"
        Gamma 0.8
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "6600GT"
        Monitor         "930BF"
        DefaultDepth    24

        SubSection "Display"
                Depth           1
                Modes "800x600 75" "800x600 60" "1024x768 75" "1024x768 60" "1280x1024 75" "1280x1024 60"
                Viewport 0 0
        EndSubSection
        SubSection "Display"
                Depth           4
                Modes "800x600 75" "800x600 60" "1024x768 75" "1024x768 60" "1280x1024 75" "1280x1024 60"
                Viewport 0 0
        EndSubSection
        SubSection "Display"
                Depth           8
                Modes "800x600 75" "800x600 60" "1024x768 75" "1024x768 60" "1280x1024 75" "1280x1024 60"
                Viewport 0 0
        EndSubSection
        SubSection "Display"
                Depth           15
                Modes "800x600 75" "800x600 60" "1024x768 75" "1024x768 60" "1280x1024 75" "1280x1024 60"
                Viewport 0 0
        EndSubSection
        SubSection "Display"
                Depth           16
                Modes "800x600 75" "800x600 60" "1024x768 75" "1024x768 60" "1280x1024 75" "1280x1024 60"
                Viewport 0 0
        EndSubSection
        SubSection "Display"
                Depth           24
                Modes "800x600 75" "800x600 60" "1024x768 75" "1024x768 60" "1280x1024 75" "1280x1024 60"
                Viewport 0 0
        EndSubSection

EndSection

$ xrandr
 SZ:    Pixels          Physical       Refresh
*0   2560 x 1024   ( 765mm x 302mm )  *50
 1   2048 x 768    ( 765mm x 302mm )   51
 2   1600 x 600    ( 765mm x 302mm )   52
 3   1280 x 1024   ( 765mm x 302mm )   75
 4   1024 x 768    ( 765mm x 302mm )   75
 5    800 x 600    ( 765mm x 302mm )   75
Current rotation - normal
Current reflection - none
Rotations possible - normal
Reflections possible - none
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